When opening an application installed from the App Store (TextWrangler) I am prompted to sign in. After entering the correct Apple ID and password I get an error,
An unknown error has occurred. This only happens with one app, other apps installed are OK.
This error also occurs when I sign in to the App Store. So its not just affecting a single application.
This also seems to be affecting my iCloud login. It prompts for a password then just seems to hang.
I spoke with Apple Support yesterday. They had me delete all Caches from /Libary/Caches, ~/Library/Caches, and a few cookies then restart my iMac. This fixed the issue yesterday. Today I start my Mac and get the same error again. I called Apple Support and got the runaround, I was told to use ExpressLane which doesn't really seem to have a solution.
How can I permanently fix this error?
Searching online turns up similar suggestions to clear caches and cookies, but also some more extreme suggestions involving network settings that I am hesitant to try.
Logs after starting TextWrangler and being prompted to login:
9/19/12 10:01:30.611 AM com.apple.backupd: Couldn't find en0. 9/19/12 10:01:30.638 AM com.apple.backupd: Backup completed successfully. 9/19/12 10:01:58.592 AM RockMelt: Cannot find function pointer CMPluginInFactory for factory 3487BB5A-3E66-11D5-A64E-003065B300BC in CFBundle/CFPlugIn 0x796aa090 </Users/jon/Library/Contextual Menu Items/Google Notifier Quick Add CM Plugin.plugin> (not loaded) 9/19/12 10:01:59.885 AM RockMelt Helper: Internals of CFAllocator not known; out-of-memory failures via CFAllocator will not result in termination. http://crbug.com/45650 9/19/12 10:02:00.615 AM RockMelt Helper: CGSLookupServerRootPort: Failed to look up the port for "com.apple.windowserver.active" (1100) 9/19/12 10:02:07.797 AM WindowServer: CGXDisableUpdate: UI updates were forcibly disabled by application "RockMelt" for over 1.00 seconds. Server has re-enabled them. 9/19/12 10:02:11.035 AM WindowServer: reenable_update_for_connection: UI updates were finally reenabled by application "RockMelt" after 4.24 seconds (server forcibly re-enabled them after 1.00 seconds) 9/19/12 10:02:34.240 AM Blink Lite:REDACTED 9/19/12 10:03:07.693 AM com.apple.launchd.peruser.501: ([0x0-0xae0ae].com.barebones.textwrangler) Exited with code: 173 9/19/12 10:03:39.054 AM librariand: MMe quota status changed: under quota 9/19/12 10:03:40.741 AM com.apple.security.pboxd: Bug: 12B19: liblaunch.dylib + 23849 [224CB010-6CF8-3FC2-885C-6F80330321EB]: 0x25 9/19/12 10:04:00.293 AM Dock: LaunchPad: __53-[LPAppManager(StoreSupport) _acceptStoreConnection:]_block_invoke_0 app store xpc message error: Connection invalid 9/19/12 10:06:11.123 AM TextEdit: SCNetworkReachability server not available 9/19/12 10:06:11.124 AM TextEdit: SCNetworkReachability server not available 9/19/12 10:06:11.130 AM TextEdit: socket(PF_ROUTE) failed: Operation not permitted 9/19/12 10:06:11.000 AM kernel: Sandbox: sandboxd(990) deny mach-lookup com.apple.coresymbolicationd 9/19/12 10:06:12.423 AM sandboxd: () TextEdit(949) deny mach-lookup com.apple.SystemConfiguration.SCNetworkReachability 9/19/12 10:06:12.426 AM sandboxd: () TextEdit(949) deny system-socket 9/19/12 10:08:22.725 AM com.apple.launchd.peruser.501: ([0x0-0xbd0bd].com.barebones.textwrangler) Exited with code: 173 9/19/12 10:09:00.951 AM Dock: LaunchPad: __53-[LPAppManager(StoreSupport) _acceptStoreConnection:]_block_invoke_0 app store xpc message error: Connection invalid